Taylor Swift's hit "Shake It Off" is the first single from her album '1989' (her birth year).   But is the song itself actually from 1989?  You'd think so after watching how perfectly it syncs up with this aerobics video from that year.

Someone obviously 'shook off' an old VHS aerobics video from 25 years ago.  I'm sure the people in the video were actually dancing to some 80's jam from Paula Abdul or maybe Olivia Newton-John's "Physical", but you won't believe how perfect their movements work when mashed together with Taylor's latest hit.   Enjoy!